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Mr. Giovannini,7th Grade



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Heat Unit Outline (2014)

   
Grade 7 Science 

Mr. Giovannini

Grade Seven

Rooms 201, 202, 203

                                                                   Unit 2: Heat 

Chapters 4, 5 and 6 
At the end of this unit, students will be expected to… 

1. Relate personal activities in formal and informal settings to temperature. 
2. Define temperature operationally. 
3. Relate temperature to everyday experiences. 
Include: 
Daily temperature changes 
Cooking temperatures 
Refrigeration temperatures 
Average temperatures in different geographic areas 

4. Predict and identify the temperature of various familiar objects. 
Include: 
Human body temperature 
Temperatures of boiling and freezing water 
Comfortable room temperature 

5. Provide examples of temperature measuring technologies used in the past.
Include: 
Galileo`s air thermometer 
Early liquid thermometers 

6. Identify scales used in temperature measurement. 
Include: 
Celsius 
Kelvin 

7. Select appropriate methods and tools in order to construct and test a
thermometer. 
8. Compile and display data collected in the test of the design of the
constructed thermometer. 
9. Describe various instruments used to measure temperature. Include: 
Liquid-in-glass thermometer 
Thermocouple 
Resistance thermometer (digital thermometers) 
Bimetallic strip (thermostat) 
Infrared thermometer 

10. Define temperature using the Particle Theory of Matter. 
11. Define matter. 


12. Describe the Particle Theory of Matter. Include: 

All matter is made up of tiny particles 
These particles are always moving – they have energy. The more energy the
particles have, the faster they move. 
There is space between all particles. 
There are attractive forces between the particles. 
The particles of one substance differ from the particles of other substances. 

13. Define kinetic energy. 
14. Define temperature as a measure of the average kinetic energy of the
particles of a substance. 
15. Explain how each state of matter reacts to changes in temperature. 
16. Compare the characteristics of the three states of matter in terms of
volume and shape. 
17. Describe the three states of matter using the Particle Theory of Matter in
terms of particle arrangement and movement. 
18. Define expansion and contraction. 
19. Use the Particle Theory of Matter to explain expansion and contraction in
the three states of matter. 
20. Explain changes of state using the Particle Theory of Matter. Include: 
Melting 
Freezing 
Evaporation 

21. State a hypothesis, carry out an experiment, identify and control major
variables and state a conclusion based on experimental data. 
22. Use heating and measuring tools accurately and safely. 
23. Organize, compile and display data using tables and graphs. 
24. Compare transmission of heat by conduction, convection, and radiation. 
25. Define conduction, convection and radiation in terms of particle movement
and the states in which they occur. 
26. List common examples of the three process of heat transfer. Include: 
Conduction – cookware, ice pack 
Convection – air currents, heating a liquid 
Radiation – fireplace, sunlight 

27. Provide examples of heat technologies used past and present to heat homes
in Ontario.
Include: 
Wood stove 
Electric heat 
Oil furnace 
Air to air heat pump 
Hot water radiation 
Geothermal 
Solar 

28. Identify different approaches taken to solve the problem of heating homes
during cold times of the year. 
29. Make informed decision about the various technologies used to heat our
homes, taking into account potential advantages and disadvantages. 
30. Provide examples of how the technologies used to heat homes have improved
over time. 

31. Provide examples of how our understanding of evaporation and condensations
of liquids resulted in the development of heat pumps. 
32. Describe how various surfaces absorb radiant heat. 
33. Design and conduct an experiment to test identified questions, state a
hypothesis, identify and control major variables. 
34. Use experimental apparatus and tools safely. 
35. Organize and display data using tables and graphs. 
36. State conclusions, based on experimental data, and explain how evidence
gathered supports or refute an initial idea. 
37. Distinguish between thermal conductors and insulators. 
38. Provide examples of insulating technologies used today and in the past.
Include: 
Animal fur 
Sod 
Fiberglass 
Thermos 

39. Compare, in qualitative terms, the specific heat capacities of some common
materials. 
Include: 
Water 
Ice 
Aluminum 
Concrete 
Steel 

40. Distinguish between heat and temperature. 
41. Define specific heat capacity. 
42. Describe how are needs related to heat can lead to developments in science
and technology. 
43. Identify examples of science and technology based careers that are
associated with heat and temperature. 



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Heat Quiz (Sample ONLY)                

Mr. Giovannini   

Science 201/202/203                                   


1.        The average energy of the moving particles of a solid, liquid, or a gas.
______________________

2.       The total energy of moving particles of a solid, liquid, or a gas.
______________________

3.        An energy transformation is a change from one form of energy to
another. When you watch your television, “Electrical Energy” is used to
produce “Radiant, and Sound Energy”.    State the Energy used and energy
produced for each application.

 Application              Energy Used           Energy Produced
-----------------------------------------------------------------------------
a.      food blender

------------------------------------------------------------------------------
b.      elevator

------------------------------------------------------------------------------
c.      automobile

------------------------------------------------------------------------------ 
d.      laptop computer
------------------------------------------------------------------------------ 
e.      bedroom lamp
------------------------------------------------------------------------------ 
f.      camera (digital)
------------------------------------------------------------------------------
 
g.      Television
------------------------------------------------------------------------------

h       radio
------------------------------------------------------------------------------

i       bicycle
------------------------------------------------------------------------------
j.      Airplane

------------------------------------------------------------------------------

4.     An instrument to measure temperature  ______________________

5.     Match these temperature with the activity.

(37 C)   (-89 C)   ( 7 C)    (12 000 000 C)    (6000)    (100 C)    (-273 C)
 
( 0 C)    (20 C)    (-7 C)

a)   Absolute Zero     _____      b)     Freezing water   _____

c)   Interior of the Sun  ____    d)    Coldest temperature on Earth ____
  

e)   Air in a refrigerator  _____  f)    Interior of the Earth  _____

g)   Boiling water   ____          h)    Human Body temperature ____

i)   Room temperature  ____        j)    Ice Cream    _____


6.     When you heat a bar of gold.

a)	    T      F       The  volume increases
b)	    T      F       The density increases
c)	    T      F       The mass increases
d)	    T      F       The weight stays the same


7.    T   F      When heat is added to a substance, the substance contracts


8.    Identify the Forms of Energy
a)    This energy is stored in matter (food, fuels)    _______________________
b)    This is the form of energy that our eyes see  ________________________
c)    This energy causes metals, such as iron, to attract or push away 
                                                                             
     ___________________________

d)    This is the stored energy an object has when it is above the Earth’s
surface
                                                                          
___________________________

e)        This energy is the energy of objects in motion    _____________________

f)        This energy is the total energy of moving particles in a solid,
liquid, or a gas.  (This energy is also know as heat)
                                                  ______________________

g)        This energy is stored at the center of particles of matter.
                                                ________________________

9.     The coldest temperature ever recorded in Canada was in Snag, Yukon
Territory. It reached

a.    -43 C     b.   - 53 C     c.    -63C      d.    -73 C


10.     The hottest temperature ever recorded in Canada was in Saskatchewan

a.    35 C      b.   45 C     c.   55 C     d.   65 C


11.     List three ways you could help conserve energy (Heat) in your home:

a) ___________________________________________________________
b) ___________________________________________________________
c) ___________________________________________________________


12.       State the “Law of Conservation of Energy”
_________________________________________________________________


13.       Heat can travel at this speed

a     3 000 km/hr     b.   300 000 km/sec     c.    300 000 km/hr

14.    ‘Pressure is Proportional to temperature’. Explain what does this mean?

______________________________________________________________________________

________________________________________________________

15.     Write a brief note on each of the following terms:

a)      Radiation:  _____________________________________________________
___________________________________________________________________

b)     Conduction: ____________________________________________________
__________________________________________________________________

c)      Convection:   ___________________________________________________
__________________________________________________________________

16.    What is Cryogenics? _____________________________________________
__________________________________________________________________

17.     How would the study of Cryogenics benefit humans in the future? 
________________________________________________________________________________________________________________________________________________________________________________________________________
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